Vayu pradushan par nibandh
vayu pradushan par nibandh 1 (100 shabd)
vayu pradushan vartaman samay pure vishv mein vishesharup se audyogikikaran ke karan bade shaharon mein sabase badi samasya hai. Paryavaran mein dhundh, dhuan, vivikt, thos padarthon adi ka risav shahar ke vatavaran ko sankendrit karata hai jisake karan logon ko svasthy sambandhi khataranak bimari ho jati hain. Log dainik adhar par bahut sa ganda kachara failate hain, vishesharup se bade shaharon mein jo bahut bade star par shahar ke vatavaran ko pradushit karane mein apana yogadan deta hai.
motar saikil (baik), audyogik prakriya, kachare ko jalana adi ke dvara nikalane vala dhuan aur pradushit gaisen vayu pradushan mein mein apana yogadan deti hain. Kuchh prakrtik pradushan bhi jaise parag-kan, dhul, mitti ke kan, prakrtik gaisen adi vayu pradushan ke strot hai.
vayu pradushan par nibandh 2 (150 shabd)
vayu pradushan kisi bhi prakar ke hanikarak padarthon ko vatavaran milana hai jisase taji hava, manushy ka svasthy, jivan ki gunavatta adi bade star par prabhavit hoti hai. Vayu pradushan din prati din udyogon ke badhane ke karan badhata ja raha hai. Is tarah ki pradushit hava keval ek sthan par nahin rahati hai, halanki pure vatavaran mein fail jati hai aur pure vishv ke logon ke jivan ko prabhavit karati hai. Bahut si bimariyon ke badhane ke karan manushy ki mrtyu dar mein bahut jyada vrddhi ho rahi hai. Pradushit hava jisamen ham pratyek kshan sans lete hain femfadon ke vikaron aur yahan tak ki fefadon ke kainsar ki bhi karak hai, is prakar yah svasthy ke sath-sath any sharirik angon ko bhi prabhavit karati hai.
vayu pradushan pure paristhitik tantr ko lagatar nasht karake ped-paidhon aur pashuon ke jivan ko prabhavit karane ke sath hi yah apani charam sima par pahunch gaya hai aur prthvi par sury ki hanikarak garm vikiranon ko anumati dekar pure vatavaran ko prabhavit kar raha hai. Fir se pradushit hava behatar insuletar ke rup mein ushma ko vapas antariksh mein jane se rokati hai.
vayu pradushan par nibandh 3 (200 shabd)
ajakal, vayu pradushan pramukh paryavaraniy muddon mein se ek hai. Vayu pradushan ke nirantar badhane ke pichhe kai karan hai. Sabase adhik vayu pradushan otomobail, parivahan sadhan, audyogikaran, badhate shaharon adi ke karan ho raha hai. Is tarah ke stroton se kai hanikarak gaison ya khataranak tatvon ka risav pure vayumandal ko pradushit kar raha hai. Vayu pradushan ke karan ojon parat bhi bahut adhik prabhavit ho rahi hai jo paryavaran mein gambhir vyavadhan ka karan ban rahi hai. Manushy ki hamesha badhati hui janasankhya ke karan unaki avashyakata mein bhi vrddhi ho rahi hai jo pradushan ka mukhy karan hai. Manushy ki dainik gatividhiyan bahut se khataranak rasayanon, vatavaran ko ganda karane ka karan hoti hai, jo jalavayu mein nakaratmak parivartan ke liye majabur karati hai.
audyogikikaran ki prakriya mein kai hanikarak gaison, kanon, pent aur baitriyon ka akramak sanchalan, sigaret, adi karban mono oksaid, parivahan ke sadhan karban dai oksaid aur any jaharile padarthon ko vatavaran mein chhodate hain. Sabhi tarah ke pradushan paryavaran se jude huye hain, jo ojon parat ko hani pahunchakar sury ki hanikarak kiranon par prthvi par amantrit karate hain. Vayu pradushan ke star ko kam karane ke liye hamen dainik adhar par apani kriya-kalapon mein bade star par parivartan lane honge. Hamen vayu pradushan ke prabhavon ko kam karane ke liye pedo ko nahin katana chahiye, sarvajinak parivahan ka prayog karana chahiye, chhidakav karane vali kainon ko varjit karana chahiye aur any un gatividhiyon ko karana chahiye jo vatavaran ko pradushit karane vale tatvon ko rokane mein sahayak ho .
vayu pradushan par nibandh 4 (250 shabd)
vayu pradushan puri vayumandaliy hava mein bahy tatvon ka mishran hai. Udyogon aur motar vahanon se utsarjit hanikarak aur bishaili gaisen mausam, ped-paudhon aur manushy sabhi ko bahut hani pahunchati hain. Kuchh prakrtik aur kuchh manaviy sansadhan vayu pradushan ke karak hain. Halanki sabase jyada vayu pradushan manav gatividhiyon ke karan hota hai jaise: jivashm, koyala aur tel ka jalana, hanikarak gaison ko chhodana aur karakhanon aur motar vahanon ke padarth adi. Is tarah ke hanikarak rasayanik tatv jaise karban oksaid, naitrojan oksaid, karban mono oksaid, salfar oksaid, thos padarth adi taji hava mein mishrit rahe hain ho. Vayu pradushan ka star bahut bade star par badha hai, jisaka karan pichhali shatabdi mein motar vahanon ki badhati hui avashyakata hai, jisase 69% tak vayu pradushan mein vrddhi ki hai.
vayu pradushan ke any stroton mein laindafil mein kachare ka apaghatan aur thos padarthon ke nirakaran ki prakriya se mithen gais (jo svasthy ke liye bahut hanikarak hota hai) ka nikalana hai. Teji se badhati hui janasankhya, audyogikikaran, svachalit vahanon ke prayog mein vrddhi, havai jahaj adi ne is mudde ko gambhir paryavaran ka mudda bana diya hai. Jis hava ko ham sans ke dvara pratyek kshan lete hain, vo puri tarah se pradushit hai jo hamare fefadon aur pure sharir mein rakt parisancharan ke madhyam se jati hai aur anaginat svasthy sambandhi samasyaon ka karan banati hai. Pradushit vayu ped-paudhon, pashuon aur manushy ke liye pratyaksh ya apratyaksh tarike se nasht karane ka karan banati hai. Yadi paryavaran ko surakshit karane vali nitiyon ka gambhirata aur kadai se palan nahin kiya gaya to vayu pradushan ka badhata hua star ane vale dashakon mein 1 miliyan tan varshik ke adhar par badh sakata hai.
vayu pradushan par nibandh 5 (300 shabd)
jab shuddh taji hava dhul, dhuan, vishaili gaison, motar vahanon, milon aur karakhanon adi ke karan pradushit hoti hai, to use vayu pradushan kahate hain. Jaisa ki ham sabhi janate hain ki, taji hava svasthy jivan ka bahut mahatvapurn tathy hai, hamen yah sochane ki jarurat hai, tab kya hoga jab pure vatavaran ki vayu gandi ho jayegi. Sabase pahale vayu pradushan puri manav jati ke liye bade khed ki bat hai. Vayu pradushan ke kuchh pramukh bade karakon mein bhole kisanon ko dvara apani fasal ki upaj ko badhane ke liye vishaile urvarakon, kitanashakon adi ka prayog hai. In urvarakon se rasayanik aur khataranak gaisen (amoniya) nikalati hain, aur vayu mein milakar vayu pradushan ka karan banati hai.
idhan ka jalana jaise jivashm; koyala, paitroliyam jisamen any karakhanon ke jalavan bhi shamil hai, adi vayu pradushan ke mukhy karak hain. Motar vahanon aur svachalit vahanon se nikalane vala vibhinn prakar ka dhuan jaise karon, bason, baik, trak, jip, tren, havai jahaj adi bhi vayu pradushan ka karan hain. Udyogon ki badhati sankhya ke karan vishaile audyogik dhuen aur hanikarak gaisen (jaise karban mono oksaid, karbanik yaugikon, haidrokarban, rasayan, adi) karakhanon tatha milon mein se paryavaran mein chhodi jati hain. Kuchh gharelu gativadhiyan jaise safai karane ke liye agyanatavash safai utpadakon ka prayog karana, kapade dhone ka paudar, pent adi bhi bahut se vishaile rasayanon ko vayu mein chhodata hai.
lagatar badhate pradushan ke star ne isake sajivon ke svasthy par nakaratmak aur hanikarak prabhavon ko bhi badhaya hai. Vayu pradushan global varming ke badhane ka bhi karan hai kyonki vatavaran ka tapaman grin haus gaison ke star ke badhane ke karan hi badh raha hai. Ye grin haus gaisen grin haus prabhav aur badhata hua samudr ka star, gleshiyar ka pighalana, mausam ka badalana, jalavayu ka badalana adi ko fir se badhati hain. Badhata hua vayu pradushan kai ghatak rogon (kainsar, hartataik, asthama, bronkaitis, gurden ki bimariyan adi) aur mrtyu ka karan ban raha hai. Bahut se mahatvapurn pashuon aur ped-paudhon ki prajatiyan is grah se puri tarah nasht chuki hain ho. Paryavaran mein hanikarak gaison ka badhana amliy varsha aur ojon parat ke ksharan ka karan ban raha hai.
vayu pradushan par nibandh 6 (400 shabd)
vatavaran ki taji hava mein hanikarak aur vishaile padarthon ka lagatar badhana vayu pradushan ka karan hai. Vibhinn bahy tatvon, vishakt gaison aur any manaviy kriyaon ke karan utpann pradushan taji hava ko prabhavit karata hai jo pratikulata se fir manav jivan, ped-paudhon aur pashuon ko prabhavit karata hai. Vayu pradushan ka star un sabhi pradushanon par nirbhar karata hai jo vibhinn stroton se nikalata hai. Sthalakrti aur mausam ki sthiti pradushan ki nirantarata ko badha rahi hain. Udyogon mein vinirman prakriya mein istemal vibhinn prakar ke kachche mal se hanikarak gaison ke utsarjan ki matra badhati ja rahi hai. Badhata hua janasankhya ghanatv aur adhik audyogikikaran ki mang kar raha hai, jo akhirakar vayu pradushan ka karan banata hai.
vayu pradushan hanikarak taral bundon, thos padarthon aur vishakt gaison (karban oksaid, halogenated aur gair- halogenated haidrokarban, naitrojan aur salfar gaisen, akarbanik padarth, akarbanik aur karbanik aml, baiktiriya, vayaras, kitanashak adi) ka mishran hai, jo samanyatah taji hava mein nahin paye jate aur ped-paudhon aur pashuon ke jivan ke liye bahut khataranak hai. Vayu pradushan do prakar ka hota hai joki prakrtik aur manav nirmit strot hai. Vayu pradushan ke kuchh prakrtik sroton jaise, jvalamukhi visfot, jvalamukhi (rakh, karban daioksaid, dhuan, dhul, aur any gaisen), ret sankuchan, dhul, samudr aur mahasagar ki lavaniyata, mitti ke kan, tufan, jangalon ki ag, brahmandiy kan , kiran, kshudragrah samagri ki bamabari, dhumaketu se spre, parag anaj, kavak bijanu, vayaras, baiktiriya adi hai.
vayu pradushan ke manav nirmit sadhan udyog, krshi, urja sayantr, svachalit vahan, gharelu strot adi hai. Manav nirmit sadhanon se kuchh vayu pradushan jaise dhumrapan, dhul, dhuen, partikulet padarth, rasoi se gais, gharelu ushma, vibhinn vahanon se nikalane vala dhuan, kitanashakon ka upayog, khar-patavar ko marane ke liye prayog ki jane vali vishakt gaisen, urja sanyatron se nikalane vali ushma, flai aish adi se hota hai. Vayu pradushan ki sankhya badhane ke karan ise do prakar mein banta gaya, prathamik pradushan, aur dvitiyak pradushan. Prathamik pradushan vo hai jo pratyaksh rup se taji hava ko prabhavit karata hai aur dhuan, rakh, dhul, dhuen, dhundh, spre, akarbanik gaison, karban daioksaid, karban monoaksaid, salfar daioksaid, haidrojan salfaid, amoniya, naitrik oksaid aur rediyodharmi yaugikon se utsarjit hota hai. Dvitiyak pradushak vo hain jo vayu ko apratyaksh rup prathamik karakon ke sath rasayanik kriya karake jaise salfar trai oksaid, ojon, haidrokarban, naitrojan daioksaid, adi se prabhavit karate hain.
puri duniya ke logon ke samuhik prayason ke dvara vayu pradushan ko niyantrit karane mein madad mil sakati hai. Audyogik kshetron ki sthapana rihayashi ilakon se dur honi chahiye, lambi chimani ka prayog karane ke liye protsahit karana chahiye (filtar aur ilektrostaitik presipitetars ke sath), chhote tapaman suchakon ke sthan par uchch tapaman sanketakon ko protsahan, urja ke ajvalanashil sroton ka upayog karana, paitrol mein gair-netrtvakari entinok aijent ke prayog ko badhava dena, vrksharopan ko badhava dena aur bhi bahut se sakaratmak prayason ko karana.
vayu pradushan par nibandh 1 (100 shabd)
vayu pradushan vartaman samay pure vishv mein vishesharup se audyogikikaran ke karan bade shaharon mein sabase badi samasya hai. Paryavaran mein dhundh, dhuan, vivikt, thos padarthon adi ka risav shahar ke vatavaran ko sankendrit karata hai jisake karan logon ko svasthy sambandhi khataranak bimari ho jati hain. Log dainik adhar par bahut sa ganda kachara failate hain, vishesharup se bade shaharon mein jo bahut bade star par shahar ke vatavaran ko pradushit karane mein apana yogadan deta hai.
motar saikil (baik), audyogik prakriya, kachare ko jalana adi ke dvara nikalane vala dhuan aur pradushit gaisen vayu pradushan mein mein apana yogadan deti hain. Kuchh prakrtik pradushan bhi jaise parag-kan, dhul, mitti ke kan, prakrtik gaisen adi vayu pradushan ke strot hai.
vayu pradushan par nibandh 2 (150 shabd)
vayu pradushan kisi bhi prakar ke hanikarak padarthon ko vatavaran milana hai jisase taji hava, manushy ka svasthy, jivan ki gunavatta adi bade star par prabhavit hoti hai. Vayu pradushan din prati din udyogon ke badhane ke karan badhata ja raha hai. Is tarah ki pradushit hava keval ek sthan par nahin rahati hai, halanki pure vatavaran mein fail jati hai aur pure vishv ke logon ke jivan ko prabhavit karati hai. Bahut si bimariyon ke badhane ke karan manushy ki mrtyu dar mein bahut jyada vrddhi ho rahi hai. Pradushit hava jisamen ham pratyek kshan sans lete hain femfadon ke vikaron aur yahan tak ki fefadon ke kainsar ki bhi karak hai, is prakar yah svasthy ke sath-sath any sharirik angon ko bhi prabhavit karati hai.
vayu pradushan pure paristhitik tantr ko lagatar nasht karake ped-paidhon aur pashuon ke jivan ko prabhavit karane ke sath hi yah apani charam sima par pahunch gaya hai aur prthvi par sury ki hanikarak garm vikiranon ko anumati dekar pure vatavaran ko prabhavit kar raha hai. Fir se pradushit hava behatar insuletar ke rup mein ushma ko vapas antariksh mein jane se rokati hai.
vayu pradushan par nibandh 3 (200 shabd)
ajakal, vayu pradushan pramukh paryavaraniy muddon mein se ek hai. Vayu pradushan ke nirantar badhane ke pichhe kai karan hai. Sabase adhik vayu pradushan otomobail, parivahan sadhan, audyogikaran, badhate shaharon adi ke karan ho raha hai. Is tarah ke stroton se kai hanikarak gaison ya khataranak tatvon ka risav pure vayumandal ko pradushit kar raha hai. Vayu pradushan ke karan ojon parat bhi bahut adhik prabhavit ho rahi hai jo paryavaran mein gambhir vyavadhan ka karan ban rahi hai. Manushy ki hamesha badhati hui janasankhya ke karan unaki avashyakata mein bhi vrddhi ho rahi hai jo pradushan ka mukhy karan hai. Manushy ki dainik gatividhiyan bahut se khataranak rasayanon, vatavaran ko ganda karane ka karan hoti hai, jo jalavayu mein nakaratmak parivartan ke liye majabur karati hai.
audyogikikaran ki prakriya mein kai hanikarak gaison, kanon, pent aur baitriyon ka akramak sanchalan, sigaret, adi karban mono oksaid, parivahan ke sadhan karban dai oksaid aur any jaharile padarthon ko vatavaran mein chhodate hain. Sabhi tarah ke pradushan paryavaran se jude huye hain, jo ojon parat ko hani pahunchakar sury ki hanikarak kiranon par prthvi par amantrit karate hain. Vayu pradushan ke star ko kam karane ke liye hamen dainik adhar par apani kriya-kalapon mein bade star par parivartan lane honge. Hamen vayu pradushan ke prabhavon ko kam karane ke liye pedo ko nahin katana chahiye, sarvajinak parivahan ka prayog karana chahiye, chhidakav karane vali kainon ko varjit karana chahiye aur any un gatividhiyon ko karana chahiye jo vatavaran ko pradushit karane vale tatvon ko rokane mein sahayak ho .
vayu pradushan par nibandh 4 (250 shabd)
vayu pradushan puri vayumandaliy hava mein bahy tatvon ka mishran hai. Udyogon aur motar vahanon se utsarjit hanikarak aur bishaili gaisen mausam, ped-paudhon aur manushy sabhi ko bahut hani pahunchati hain. Kuchh prakrtik aur kuchh manaviy sansadhan vayu pradushan ke karak hain. Halanki sabase jyada vayu pradushan manav gatividhiyon ke karan hota hai jaise: jivashm, koyala aur tel ka jalana, hanikarak gaison ko chhodana aur karakhanon aur motar vahanon ke padarth adi. Is tarah ke hanikarak rasayanik tatv jaise karban oksaid, naitrojan oksaid, karban mono oksaid, salfar oksaid, thos padarth adi taji hava mein mishrit rahe hain ho. Vayu pradushan ka star bahut bade star par badha hai, jisaka karan pichhali shatabdi mein motar vahanon ki badhati hui avashyakata hai, jisase 69% tak vayu pradushan mein vrddhi ki hai.
vayu pradushan ke any stroton mein laindafil mein kachare ka apaghatan aur thos padarthon ke nirakaran ki prakriya se mithen gais (jo svasthy ke liye bahut hanikarak hota hai) ka nikalana hai. Teji se badhati hui janasankhya, audyogikikaran, svachalit vahanon ke prayog mein vrddhi, havai jahaj adi ne is mudde ko gambhir paryavaran ka mudda bana diya hai. Jis hava ko ham sans ke dvara pratyek kshan lete hain, vo puri tarah se pradushit hai jo hamare fefadon aur pure sharir mein rakt parisancharan ke madhyam se jati hai aur anaginat svasthy sambandhi samasyaon ka karan banati hai. Pradushit vayu ped-paudhon, pashuon aur manushy ke liye pratyaksh ya apratyaksh tarike se nasht karane ka karan banati hai. Yadi paryavaran ko surakshit karane vali nitiyon ka gambhirata aur kadai se palan nahin kiya gaya to vayu pradushan ka badhata hua star ane vale dashakon mein 1 miliyan tan varshik ke adhar par badh sakata hai.
vayu pradushan par nibandh 5 (300 shabd)
jab shuddh taji hava dhul, dhuan, vishaili gaison, motar vahanon, milon aur karakhanon adi ke karan pradushit hoti hai, to use vayu pradushan kahate hain. Jaisa ki ham sabhi janate hain ki, taji hava svasthy jivan ka bahut mahatvapurn tathy hai, hamen yah sochane ki jarurat hai, tab kya hoga jab pure vatavaran ki vayu gandi ho jayegi. Sabase pahale vayu pradushan puri manav jati ke liye bade khed ki bat hai. Vayu pradushan ke kuchh pramukh bade karakon mein bhole kisanon ko dvara apani fasal ki upaj ko badhane ke liye vishaile urvarakon, kitanashakon adi ka prayog hai. In urvarakon se rasayanik aur khataranak gaisen (amoniya) nikalati hain, aur vayu mein milakar vayu pradushan ka karan banati hai.
idhan ka jalana jaise jivashm; koyala, paitroliyam jisamen any karakhanon ke jalavan bhi shamil hai, adi vayu pradushan ke mukhy karak hain. Motar vahanon aur svachalit vahanon se nikalane vala vibhinn prakar ka dhuan jaise karon, bason, baik, trak, jip, tren, havai jahaj adi bhi vayu pradushan ka karan hain. Udyogon ki badhati sankhya ke karan vishaile audyogik dhuen aur hanikarak gaisen (jaise karban mono oksaid, karbanik yaugikon, haidrokarban, rasayan, adi) karakhanon tatha milon mein se paryavaran mein chhodi jati hain. Kuchh gharelu gativadhiyan jaise safai karane ke liye agyanatavash safai utpadakon ka prayog karana, kapade dhone ka paudar, pent adi bhi bahut se vishaile rasayanon ko vayu mein chhodata hai.
lagatar badhate pradushan ke star ne isake sajivon ke svasthy par nakaratmak aur hanikarak prabhavon ko bhi badhaya hai. Vayu pradushan global varming ke badhane ka bhi karan hai kyonki vatavaran ka tapaman grin haus gaison ke star ke badhane ke karan hi badh raha hai. Ye grin haus gaisen grin haus prabhav aur badhata hua samudr ka star, gleshiyar ka pighalana, mausam ka badalana, jalavayu ka badalana adi ko fir se badhati hain. Badhata hua vayu pradushan kai ghatak rogon (kainsar, hartataik, asthama, bronkaitis, gurden ki bimariyan adi) aur mrtyu ka karan ban raha hai. Bahut se mahatvapurn pashuon aur ped-paudhon ki prajatiyan is grah se puri tarah nasht chuki hain ho. Paryavaran mein hanikarak gaison ka badhana amliy varsha aur ojon parat ke ksharan ka karan ban raha hai.
vayu pradushan par nibandh 6 (400 shabd)
vatavaran ki taji hava mein hanikarak aur vishaile padarthon ka lagatar badhana vayu pradushan ka karan hai. Vibhinn bahy tatvon, vishakt gaison aur any manaviy kriyaon ke karan utpann pradushan taji hava ko prabhavit karata hai jo pratikulata se fir manav jivan, ped-paudhon aur pashuon ko prabhavit karata hai. Vayu pradushan ka star un sabhi pradushanon par nirbhar karata hai jo vibhinn stroton se nikalata hai. Sthalakrti aur mausam ki sthiti pradushan ki nirantarata ko badha rahi hain. Udyogon mein vinirman prakriya mein istemal vibhinn prakar ke kachche mal se hanikarak gaison ke utsarjan ki matra badhati ja rahi hai. Badhata hua janasankhya ghanatv aur adhik audyogikikaran ki mang kar raha hai, jo akhirakar vayu pradushan ka karan banata hai.
vayu pradushan hanikarak taral bundon, thos padarthon aur vishakt gaison (karban oksaid, halogenated aur gair- halogenated haidrokarban, naitrojan aur salfar gaisen, akarbanik padarth, akarbanik aur karbanik aml, baiktiriya, vayaras, kitanashak adi) ka mishran hai, jo samanyatah taji hava mein nahin paye jate aur ped-paudhon aur pashuon ke jivan ke liye bahut khataranak hai. Vayu pradushan do prakar ka hota hai joki prakrtik aur manav nirmit strot hai. Vayu pradushan ke kuchh prakrtik sroton jaise, jvalamukhi visfot, jvalamukhi (rakh, karban daioksaid, dhuan, dhul, aur any gaisen), ret sankuchan, dhul, samudr aur mahasagar ki lavaniyata, mitti ke kan, tufan, jangalon ki ag, brahmandiy kan , kiran, kshudragrah samagri ki bamabari, dhumaketu se spre, parag anaj, kavak bijanu, vayaras, baiktiriya adi hai.
vayu pradushan ke manav nirmit sadhan udyog, krshi, urja sayantr, svachalit vahan, gharelu strot adi hai. Manav nirmit sadhanon se kuchh vayu pradushan jaise dhumrapan, dhul, dhuen, partikulet padarth, rasoi se gais, gharelu ushma, vibhinn vahanon se nikalane vala dhuan, kitanashakon ka upayog, khar-patavar ko marane ke liye prayog ki jane vali vishakt gaisen, urja sanyatron se nikalane vali ushma, flai aish adi se hota hai. Vayu pradushan ki sankhya badhane ke karan ise do prakar mein banta gaya, prathamik pradushan, aur dvitiyak pradushan. Prathamik pradushan vo hai jo pratyaksh rup se taji hava ko prabhavit karata hai aur dhuan, rakh, dhul, dhuen, dhundh, spre, akarbanik gaison, karban daioksaid, karban monoaksaid, salfar daioksaid, haidrojan salfaid, amoniya, naitrik oksaid aur rediyodharmi yaugikon se utsarjit hota hai. Dvitiyak pradushak vo hain jo vayu ko apratyaksh rup prathamik karakon ke sath rasayanik kriya karake jaise salfar trai oksaid, ojon, haidrokarban, naitrojan daioksaid, adi se prabhavit karate hain.
puri duniya ke logon ke samuhik prayason ke dvara vayu pradushan ko niyantrit karane mein madad mil sakati hai. Audyogik kshetron ki sthapana rihayashi ilakon se dur honi chahiye, lambi chimani ka prayog karane ke liye protsahit karana chahiye (filtar aur ilektrostaitik presipitetars ke sath), chhote tapaman suchakon ke sthan par uchch tapaman sanketakon ko protsahan, urja ke ajvalanashil sroton ka upayog karana, paitrol mein gair-netrtvakari entinok aijent ke prayog ko badhava dena, vrksharopan ko badhava dena aur bhi bahut se sakaratmak prayason ko karana.
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